c-cppbuiltin.c (c_cpp_builtins): Define __cpp_structured_bindings.

	* c-cppbuiltin.c (c_cpp_builtins): Define __cpp_structured_bindings.

	* g++.dg/cpp1z/feat-cxx1z.C: Test __cpp_structured_bindings macro.

From-SVN: r242395

gcc/c-family/ChangeLog

+2016-11-14  Jakub Jelinek  <jakub@redhat.com>
+
+	* c-cppbuiltin.c (c_cpp_builtins): Define __cpp_structured_bindings.
+
 2016-11-14  Prasad Ghangal  <prasad.ghangal@gmail.com>
 	    Richard Biener  <rguenther@suse.de>
 

gcc/c-family/c-cppbuiltin.c

@@ -943,6 +943,7 @@ c_cpp_builtins (cpp_reader *pfile)
 	  cpp_define (pfile, "__cpp_deduction_guides=201606");
 	  cpp_define (pfile, "__cpp_noexcept_function_type=201510");
 	  cpp_define (pfile, "__cpp_template_auto=201606");
+	  cpp_define (pfile, "__cpp_structured_bindings=201606");
 	}
       if (flag_concepts)
 	cpp_define (pfile, "__cpp_concepts=201507");

gcc/testsuite/ChangeLog

+2016-11-14  Jakub Jelinek  <jakub@redhat.com>
+
+	* g++.dg/cpp1z/feat-cxx1z.C: Test __cpp_structured_bindings macro.
+
 2016-11-14  Janus Weil  <janus@gcc.gnu.org>
 
 	PR fortran/78300

gcc/testsuite/g++.dg/cpp1z/feat-cxx1z.C

@@ -392,6 +392,12 @@
 #  error "__cpp_noexcept_function_type != 201510"
 #endif
 
+#ifndef __cpp_structured_bindings
+#  error "__cpp_structured_bindings"
+#elif __cpp_structured_bindings != 201606
+#  error "__cpp_structured_bindings != 201606"
+#endif
+
 #ifdef __has_cpp_attribute
 
 #  if ! __has_cpp_attribute(maybe_unused)